A 37 channel dc SQUID magnetometer system

Conference · Fri Mar 01 04:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6088894

Koch, H; Cantor, R; Drung, D; Erne, S N; Matthies, K P; Peters, M; Ryhanen, T; Scheer, H J; Hahlbohn, H D ^[1]

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1. Physikalisch-Technische Bundesanstalt, Institut Berlin, Abbestr. 10-12, D-1000 Berlin (DE)

This paper reports on a 37 channel dc SQUID magnetometer system built for biomagnetic studies. The SQUID loop of each magnetometer serves as the active sensing element, thereby eliminating the need for flux coupling circuits. The magnetometers are located {approx equal}3 cm above the outer dewar bottom. The SQUIDs are directly coupled to a highly simplified read-out electronics using only 5 wires per channel; no helium temperature impedance matching circuits are required. Each channel can be independently inserted into or remove from the dewar.

• OSTI ID: 6088894
• Report Number(s): CONF-900944--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
• Country of Publication: United States
• Language: English

Related Subjects

665411 -- Basic Superconductivity Studies-- (1992-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CONTAINERS
COUPLING
DEWARS
ELECTRONIC EQUIPMENT
EQUIPMENT
FABRICATION
FLUXMETERS
MAGNETIC FLUX
MAGNETIC SHIELDING
MAGNETOMETERS
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
OPTIMIZATION
SHIELDING
SIGNAL-TO-NOISE RATIO
SQUID DEVICES
SUPERCONDUCTING DEVICES